Externally-finished paper tube and the method of making the same



1,442,955. .I. D. LAN E. EXTERNAQIIYIFINISHED PAPER TUBE AND THE METHOD OF MAKING THE SAME.

Jan. 23, 1923.

FILED AUGJT, I92!- 1 INVENT DE! to i i a. all! JOHN D. LANE, 0L? BUSIQN, MASSACHUSETTtE.

EXTERNAl-LY-FINISHED PAPER TUBE AND THE METHOJD OF MAKING THE SAIVIE.

Application filed August '17, 1921.

To (LU whom it may (O/MW)! Be it. known that I, dons l). LANE, a citizen of the United States, residing at Boston, in the county of hluli'olk and r-ltate o'l' lllassachusetts, have invented new and useful improvements in llxternally-l ini'shed Paper llubes and the Method ol' lilaking the Same of which the following is a specification.

This invention relates to tubular articles such as handles of package carriers, mailing tubes, etc. The object pi the invention is to utilize waste paper and particularly paper that has been printed upon and (ksearded, in such manner as to f1rii ovidc at a trifling expense a suitably strong and rigid tube, and to inexpensively finish the external surface of the tube to conceal blcn'iishes such as printed inatter on the Waste paper (it which it is made.

The invention consists in the construction and method hereinafter described and claimed.

()l the accompanying drawings torminp a part of this specification,

Figure l is a perspective view of a tube embodying the invention, showing the tube as the hand grip of a package carrier.

Figure 2 is an ei'ilargzjed longitudinal section of the tube.

Figure 3 is a. section on line 3-2-5 ot' Fig ure 2.

Figure 4 is fragmentary sectional view illustrating the operation of grooving an elongated tubular blank from which a noun ber oi finished tubes may be made.

Figure 5 is a. pers 'iertive view of a strip prepared for conversion into a finished tube.

l igure ii is an enlarged section on line 6-4") oi Figure 5.

The same rratererme characters indicate the same parts in all oi the figures.

in cairvingg' out my invention the procedure may l as follows:

A strip i2 is cut from waste paper such as a portion of a discarded newspaper. To one end oi the strip is united by a suitable adhesive a finishing otters-non 13 forming a linishingr layer in the completed tube. and ol ilcziible sheet material such as plain paper ol' suitable quality to l'orni a desirable sllY- 'l'ace coating covering the outer convolution of the strip when the latter is rolled into a plurality of convolutioiis forming a. tube wall of suitahle thickness. To the inner side oi the strip '12 and to the inner side of Serial No. ll-92,89 1.

the extension 13, I apply a. coating 15 of a suitable hard-drying adhesive such glue.

which is insoluble in Water, the adhesive being applied in a fluid condition to which it is reduced by heat. The coating 15 terminates at a point near the end of the, strip 12. opposite that having the extension 13, so that a portion 12 of the strip is'left dry, said portion constituting the inner convolution of the rolled strip. The strip then rolled while the coating-"15 is soft, on a suitable mandrel, the coated side being inward, and the dry portion 12 contacting with the mandrel, so that the adhesive does not touch and adhere to the mandrel. The length oi the strip is such that as many convolutions may be formed are necessary to form a tube wall 17 of the desired thickness. The co'uvolutions ot the rolled strip are united to each other by the adhesive coating 15. The extension 13 covers and adheres to the outer convolution of the strip 12, and forms the outer convolution ot the completed tube, said outer convolution forming; a finishing coating LCOYICHEllIIg Hie-blemishes of the strip 12. The adhesive is then allowed. to hardeii by drying, the tube being thus oomph:

it is obvious that an elongi-ited tuhe or blank may be li'orn'ied by the described operation, adapted to be transversely cut into plurality of operative tubes, the. width the strip 12' and extension. 13 being suilieient to form such elongated tube or blank. The elongated tube may he peripherally grooved at the locations where it to be transversely cut. Figure 4 shows a? peripheral groove 20 formed by a. disk 21, pressed against the tube While the bitter is Supported and rotated by the mandrel on which it is formed. l lhen the tube is transversely cut at the location ot the groove, the finishing coating; formed by the extension 13 is crimped inwardly at its ends at 13, as indicated by l igrure 3, ever portions of the ends oi the tube, so that the -tuhe ends present a neatly iinisluu'l appearance.

As shown in Figure 4 the inward dctiection oi" the ends of the outer or finishing 'layer of the tube above referred to initiated by the disk 21 when forming); the pe riperal groove 20. as the tube severed by forcing a cutter transversely thereof through said groove the crimping action of the ends of the portion 13 is completed.

lit will now be seen that by forming an elongated strip of waste paper into a tube llU and applying a finishing coating to the outer convolution of the tube to conceal the bleinishes of the Waste paper, I provide, at an inconsiderable expense, :1 tube which is very desirable as the hand grip of a package carrier, or as a mailing tube. The finishing coating imparts a desirable appearance to the tube, and is adapted to receive printed or Written matter, such as an advertisement or an address.

If desired the finishing coating may he composed of a fluid 0r pasty mixture or composition spread on the outer convolution of the strip 12, and adapted when dried to form a suitable external finish.

I claim:

1. A tube composed of a strip of waste printed paper, wound to form a plurality of convolutions, a hard-drying adhesive uniting convolutions and rendering the same rigid, and a finishing coating of sheet material cemented to and concealing the outer convolution of the strip and the printed matter thereon.

2. A tube composed of a strip of wa; :e paper, Wound to form a plurality of convolutions, a hard-drying adhesivenniting the convolutions and rendering the same rigid,

and a finishing coating of sheet material ee- Inented to and concealing the outer convolution of the strip, the ends of said coating being crimped inwardly over portions of the ends of the Wound strip.

3. The method of utilizing waste printed paper, which consist in cutting an elongated strip from such paper, uniting a flexible finishing extension to one end of the strip, coating one side of the extension and a portion of the same side of the strip with a ham drying adhesive, theopposite end portion of the strip being dry. rolling the strip and extension with the coated sides inward on a mandrel into a plurality-oi convolutions while the adhesive is sol't. the dry cnd poi tion of the strip constituting an inner convolution. contacting with the mandrel. the finishing extension being thus cemented to the outer convolution of the strip. and constituting a finishing coating. and finally allowing the said adhesive to solidity h v dr vmg.

4. The herein described nlcthod of terming tubes. which comprises cutting an elon gated strip 'l'roni waste printed paper. unit ing a tlexihle linishing extension to one end oi the strip. coating one tare ol' the extension and a portion of the same face of the st rip with a hard-drying adhesive. the opposite end portion of the strip being uneoaied. rolling the strip and extension. with the coated faces inward, on a mandrel into a plu 'ality of convolutions while the adhesive is soft. the uncoatcd end portion of the strip constituting the inner convolution.- and the extension being ccnientcd to the outer convolution ol' the strip and constituting a tinishing layer. peripherall grooving the tube thus formed. and severing the tuhe in alignment with each groove. whereby the ends of the outer finishing layer are criniped in ward over portions of the endsoi the sev ered sections.

in testimony whereof I have allixed inv signature.

JOHN D. LANE.

"iii

titl 

